Temperature is constant. At first, this system is closed. In tank one: A 2 Liter tank containing H2 at a pressure of 1.5 atmospheres. In tank two: A 1 Liter tank containing N2 at a pressure of 3 atmospheres. In tank three: A 4 Liter tank containing CO2 at a pressure of 1 atmosphere. Also, a non-volatile liquid covers the bottom 1.67 Liters. The system is then opened. What is the TOTAL PRESSURE in the opened system, and the PARTIAL PRESSURE of each gas? I would think that the problem gives the partial pressures already, right? So partial of H2 = 1.5 atm, N2 = 3 atm and CO2 = 1 atm And just add all the pressures together to get 5.5 atm as the total pressure? Is this right?